Find out the following in the electric circuit given in figure alongside:

(a) Effective resistance of two `8 Omega` resistors in the combination
(b) Current flowing through` 4Omega` resistor
(c) Potential difference across `4Omega` resistance
(d) Power dissipated in `4Omega` resistor
(e) Difference in ammeter readings, if any

Explanation

(a) `R= (R_(1)R_(2))/(R_(1)+R_(2))= ((8 xx 8)/(8+8))= 4Omega`
(b) `I= (V)/(R)= (8)/(4+ ((8 xx 8)/(8+8)))= (8)/(8)=1A`
(c) `V= IR= 1 xx 4= 4V`
(d) `P= I^(2)R= 1^(2) xx 4= 4W`
(e) No difference, same current flows through each element in a series circuit.